About Us

Why Choose Us

Family-Run Multihull Agency with

50 Years Experience

Welcome To Robert Underwood Multihulls, The UK’s Most Experienced Multihull Service.

With over 50 years’ experience in the design, construction and sale of catamarans we are uniquely placed to advise you on any aspect of your multihull requirements, be it sail or power.

RUMulti is an independent source for multihull customers, offering the full range of services backed up by years of hands-on experience in all areas of the multihull industry.


Offering full 360-degree

Multihull Services

We specialise in:

  • Multihull brokerage
  • New boat sales and commissioning
  • Project management
  • Consultancy

We can also help facilitate most other services such as yacht surveys for pre-sale, post-purchase, and tonnage, along with arranging delivery services and/or crew for transporting your boat to wherever you need it to be.

Trusted Advisors

Independent Advice

We are able to advise on the suitability of most of the modern multihulls available today so please contact us if you need independent advice on any make or model. We can find and facilitate the purchase of the most suitable multihull for your specific needs. From our vast experience of Catana, Bali, Sunreef, Lagoon, Broadblue & Prout Catamarans we are best placed to offer specialist advice for any of their models.

Exclusive Partnerships with

Leading Manufacturers

We have worked with many of the major shipyards across Europe and as far as China, securing numerous exclusivity deals for some of the worlds biggest and most well-known catamaran builders. We continue to maintain good contact with many of them and utilise decades of specialist experience all the way from the sale & signature stage, through project managing the build all the way to delivery.

Custom Made

Luxury Catamarans

We are also very proud to have worked with and been agents for the world’s leading manufacturer of custom-made luxury catamarans. Sunreef Yachts is considered to be the world’s leading designer and manufacturer of luxury sailing and power multihulls. Each custom-made yacht is designed in great detail for the most demanding customers and delivers the best in comfort, style and safety. Every yacht boasts excellent sailing, luxurious accommodation, vast living spaces, with extravagant and innovative design features.